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13.1 Check Power Mode (E5h/98h)
Table 61: Check Power Mode Commmand (E5h/98h)
Command Block Output Registers
Register
Data
Feature
Sector Count
LBA Low
LBA Mid
LBA High
Device
Command
Error Register
7
6
5
CRC UNC
0
IDN
0
0
0
The Check Power Mode command will report whether the device is spun up and the media is available for immedi-
ate access.
Input parameters from the device
Sector Count
7 6 5 4 3 2 1 0
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
1 - 1 D - - - -
1 1 1 0 0 1 0 1
4
3
2
1
0
ABT T0N AMN
0
0
V
0
This indicates the power mode code. The command returns FFh in the Sector Count Reg-
ister if the spindle motor is at speed and the device is not in Standby or Sleep mode. Other-
wise, the Sector Count Register is set to 0.
Travelstar 80GN Hard Disk Drive Specification
Command Block Input Registers
Register
Data
Error
Sector Count
LBA Low
LBA Mid
LBA High
Device
Status
0
7
6
5
BSY RDY DF DSC DRQ
0
0
0
0
101
7 6 5 4 3 2 1 0
- - - - - - - -
see below
V V V V V V V V
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
see below
Status Register
4
3
2
1
COR IDX
-
-
0
-
0
ERR
V
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